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发明名称
Doorstop
摘要
申请公布号
US1935252(A)
申请公布日期
1933.11.14
申请号
US19320587882
申请日期
1932.01.21
申请人
SPRATT GEORGE W;CULLEN JULIEN F
发明人
SPRATT GEORGE W.;CULLEN JULIEN F.
分类号
E05C17/54
主分类号
E05C17/54
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